Prosecution Insights
Last updated: October 02, 2026

Examiner: MOUDOU, EILEEN QI-YUN

Tech Center 4100 • Art Units: 1718 1738 1788 4100

This examiner grants 67% of resolved cases

Analysis

Eileen Qi-Yun Moudou is an examiner in Tech Center 4100, Art Unit 1718, with 3 resolved cases. Her allowance rate is 66.7 percent, which provides an initial baseline for the probability of success in her art unit. Although the sample size is limited to 3 resolved cases, this rate offers a preliminary look at the examiner's disposition. Practitioners should monitor how this 66.7 percent rate evolves as more cases are resolved in Art Unit 1718.

The median days to allowance is 930 days, establishing a timeframe for the prosecution process to reach a successful outcome. The interview lift is currently 0.0 percent, indicating that interviews have not yet shown a statistical increase in the likelihood of allowance over the base rate. Applicants should weigh the 930-day median against the allowance rate when planning their approach. While the data set is small, these figures are the only available metrics for evaluating performance in Tech Center 4100. The 0.0 percent lift suggests that written advocacy has been the primary driver in these resolved cases.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

66.7%
Allow Rate
+6.7% vs TC avg
42
Total Applications
+0.0%
Interview Lift
930
Avg Prosecution Days
Based on 3 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
5.4%
§102 Novelty
60.9%
§103 Obviousness
26.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18317091 MANUFACTURING METHOD OF SILICA PARTICLES Final Rejection FUJIFILM Business Innovation Corp.
17041797 PRODUCTION METHOD FOR LITHIUM SULFAMATE, AND NOVEL LITHIUM SULFAMATE Final Rejection DAIKIN INDUSTRIES, LTD.
18320435 SILICON CARBON COMPOSITE MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18566719 DIAMOND POLYCRYSTALLINE BODY, AND TOOL COMPRISING DIAMOND POLYCRYSTALLINE BODY Non-Final OA SUMITOMO ELECTRIC HARDMETAL CORP.
18551635 METHOD FOR PRODUCING LITHIUM HYDROXIDE Final Rejection IDEMITSU KOSAN CO.,LTD.
18255665 METHODS FOR EXTRACTING RARE EARTH ELEMENTS FROM RARE EARTH ELEMENT SOURCES Final Rejection VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
18376471 TUNGSTEN PRECURSORS AND RELATED METHODS Non-Final OA ENTEGRIS, INC.
18568550 APPARATUS AND METHOD FOR SELECTIVE REMOVAL OF AT LEAST ONE RARE EARTH ELEMENT Non-Final OA THE PENN STATE RESEARCH FOUNDATION
18545069 GRAPHENE MANUFACTURING METHOD Non-Final OA HAMAMATSU PHOTONICS K.K.
18457615 DECORATIVE ARTICLE HAVING BIO-HYBRID NANO-PARTICLE PHOTONIC CRYSTAL STRUCTURE, AND METHOD OF MANAUFACTURE THEREOF Final Rejection FCA US LLC
18202730 MEDIUM-ENTROPY PEROVSKITE OXYGEN CARRIER AND PREPARATION METHOD AND APPLICATION THEREOF Final Rejection TIANJIN UNIVERSITY
18625907 DEVICE AND METHOD FOR ON-LINE CONTINUOUS RECOVERY OF EXCESS NITRIC ACID IN NITRATION REACTION Non-Final OA Fudan University
18215821 METHOD FOR RECYCLING LITHIUM IRON PHOSPHATE WASTE AND APPLICATION THEREOF Non-Final OA HUNAN BRUNP EV RECYCLING CO., LTD.
18214523 METHOD FOR RECOVERING LITHIUM FROM LITHIUM IRON PHOSPHATE WASTE AND APPLICATION THEREOF Final Rejection HUNAN BRUNP EV RECYCLING CO., LTD.
18283888 TREATMENT OF HYDROUS ORE MATERIALS Non-Final OA AFRICAN RAINBOW MINERALS LIMITED
18315207 Production of Graphite from a Sustainable Source Final Rejection Global Graphene Group, Inc.

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